| 摘要 |
PROBLEM TO BE SOLVED: To provide an IC chip capable of blocking exposure of an identification key such as e.g., a PIN that becomes authorization means, and an authorization method of the IC chip.SOLUTION: A smart card 100 including an IC chip that performs a financial function includes: a PIN supply 210 for supplying the PIN to be used for authorization when performing the financial function using the IC chip; and a blocking part 230 for, when the PIN is provided to the outside through an input/output interface 220 at an initial first access of the IC chip, physically blocking a gap between the PIN supply part and the input/output interface.EFFECT: Since a financial institution does not preserve the PIN for identification, PIN exposure of a user can be blocked from a security attack such as hacking to the financial institution.SELECTED DRAWING: Figure 2 |
